Messages in this thread Patch in this message |  | | From | Hillf Danton <> | | Subject | Re: [syzbot] [media?] KASAN: slab-use-after-free Read in dvb_device_open | | Date | Sun, 19 Jan 2025 08:14:59 +0800 |
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On Sat, 18 Jan 2025 11:50:29 -0800 > syzbot has found a reproducer for the following issue on: > > HEAD commit: 595523945be0 Merge tag 'devicetree-fixes-for-6.13-2' of gi.. > git tree: upstream > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12183fc4580000
#syz test
--- x/drivers/media/dvb-core/dvbdev.c +++ y/drivers/media/dvb-core/dvbdev.c @@ -109,8 +109,10 @@ static int dvb_device_open(struct inode err = file->f_op->open(inode, file); up_read(&minor_rwsem); mutex_unlock(&dvbdev_mutex); - if (err) + if (err) { + WARN(1, "open %pS\n", file->f_op->open); dvb_device_put(dvbdev); + } return err; } fail: --
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